Saw.



' 0.. A. SHERBEGK,

SAW.

I APPLICATION FILED JULY 24.1917 1,262,987. Patented-Apr. 16, 1918.

. 2 S HEET SSHEEIT 1.

mum

INVENTOI ATTQRNE c. A. SHERBECK.

' SAW- APPLICATION FILED .IULY 24.191I. v

Patented Apr. 16,1918.

2 SHEETS-SHEET 2.

' CHARLES A. SHERBECK, 0F BEDFORD, IOWA.

SAW.

Specification of Letters Patent. Patented Apr. 16, 1918..

Application filed July 24, 1917. Serial N 0. 182,487.

To all whom it may concern:

Be it known that 1, CHARLES A. SHERBECK, a citizen of the United States, residing at Bedford, in the county of Taylor and State of Iowa, have invented certain new and useful Improvements in Saws, ofwhich the following'is a specification.

This invention has relation to portable sawing machines, and has for an object to provide a machine of this character which may be utilized either for sawing standing timber, or for sawing up logs.

Another object of the invention is to provide a wood sawing machine of the character above described embodying a wheel supported truck, and sawing. machinery mounted thereon adjustable to one position for sawing standing timber, and to another position for sawing up logs lying in a horizontal position. I

A still further object of the invention is to provide asawing machine embodying a novel means for reciprocating a drag saw or the like while the saw is in either one of its adjusted positions for sawing standing timber or logs. V

In addition to the foregoing my invention comprchendsimprovements in the details of construction and arrangement of the parts to be hereinafter more fully described and particularly set forth in the appended claims.

In the accompanying drawings in which similar and corresponding parts are designated by the same characters of reference throughout the several views in which they appear:

Figure 1, is a view in plan of a portable sawing outfit constructed in accordance with my invention illustrating the use thereof in the sawing of logs.

Fig.2, is a view thereof in the position above named in side elevation.

Fig. 3, is a view of the machine in plan illustrating the adjustment of the saw for sawing standing timber, and

Fig. l, is a detail vertical section taken on the line 4.4 of Fig. 3.

\Vith reference to the drawings, 10 indicates a truck which is supported at one end upon a swiveled caster 12 and at the opposite or free end upon a pair of transversely spaced rollers 13, each of which is mounted upon the end of a pair of arms ll which are likewise rigidly mounted upon a transversely extending shaft 15 journaled at its ends in bearings 16 mounted upon the truck.

ing the same said lever being movable in proximity to a segmental rack 18, andra locking mechanism indicated as an entirety at 19 is provided upon the lever for engaging said rack and for returning the lever in any adjusted position. The forward end of the truck is provided with apair of supporting legs 20; it will be obvious that by oscillatingthe lever 17, the wheels 13 maybe brought into engagement with the ground to elevate the front end of the truclgraising the supporting legs 20 from the ground. Conversely, the lever may be'oscillated'to lower the front end of the tru'ok'to permit the same to rest upon the supporting legs when the sawing machinery is in operation.

A movable saw frame is provided comprising an inverted U-shaped standard 21, mounted upon the forward end of the truck adjacent one longitudinal edge thereof, the standard being formed ofchannel iron with the lower end hingedly connected by means I of a p'in 23 to a bracket .23 secured to the A lever 17 is secured to the shaft for rotat side of the truck whereby to permit move-- ment of said standard from 'a vertical toa horizontal position. a The front standard 21 is made more substantial by providing an integrally formed brace 2-1 having an opening in which to receive a pin 25 secured to the floor of the truck. A saw supporting bar 26 is provided having, one end pivotally supported upon an eye-bolt 27 which'extends through the upper bifurcated end of arear standard 22 mounted on the truck'an'd' at the opposite end'supported by means of a lever 28 which is pivotally mounted as at 29 upon the upper end of the standard 21 with one end of the lever-connected by means of a link 30 to said bar 26. A segment 31 is mounted concentrically relative to the fulcrum point 29 for coactionwith the locking mechanism provided upon the lever whereby to retain the same in any adjusted position. The saw blade 32 is mounted in'a U-shaped saw frame 33, the ends of the blade being supported in the terminals of said frame and the greater portion of said frame lying substantially parallel to the saw blade with one of the terminals of said frame connected to a saw reciprocating rod 34, the opposite endjof the rod being connected to ball and socket connection indicated as an entirety at 35. The outer endof the bar 26is provided with ,a pair of spaced plates 26 between which the bight of the the device.

saw frame 33 is guided and supported by means of pins extending across the-plates.

The saw reciprocating mechanism includes a slotted plate 36 in which a cross head 40 is 'slidably held, the cross head comprising a bolt 37 at one end supporting the ball and socket connection 35 and said connection comprises a semi-spherical hollow member mounted on one end of the bolt, said semi-spherical member having an annular flange 42 for coaction' with a similar flange 43 formed upon a semi-spherical hollow cap member 44. The flanges 42 and 43 are connected by means of bolts 45. The socket is formed with a circumferentially extending slot 46 extending for approximately one-quarter the circumference of said socket through which slot the reciprocating rod 84 extends, said rod being provided with a spherical member which is loosely held within the semi-spherical members of the joint. 7

A drive shaft 4 8 is extended transversely of the machine and journaled in bearings 49 mounted upon the truck. One end of the shaft is provided with a pulley 50 and the other end with a pinion 51. This pinion forms a part of a device for converting rotary motion of the shaft 48 into reciprocating motion designated as an entirety at 54. This device comprises an elongated hollow casting formed of spaced parallel sides 55 andconnected at their ends as at 56, said'endsbeing rounded. A rack bar 55 is extended longitudinally of the device midway between the said sides and supported at its ends by means of bolts 57 which are" secured to the rear wall 58' of Said device includes a longitudinallyextending rod 58 at one end which is piv'otally connected as at 59 to the bolt 37 and cross head 40. I

The .saw is held in engagement with its work by means of a rod 60 mounted for vertical movement upon the front standard 21 in a lug 61 mounted thereon, with one end of the rod connected to the saw supporting bar 26. A spring 63 is encircled about the rod 60 and interposed between said bar 26 and the lug 6l'whereby to urge the saw into engagement with its work.

In operation, a source of power 64 is connected to the pulley 50 by means of a belt. Rotation of the pinion 51, when the same is in the relative position shown in Fig. 2, with the shaft 48 rotating in a clockwise direction, will move the. rack device 54 to the right. When the rack teeth in the left hand end of the rack bar 55 engage the pinion, the device will ride upward upon of the device with the pinion will likewise depress the same so as to cause the terminal of the shaft to again ride upon the side of the rib and this operation is repeated thereby continuously reciprocating the device 54 in opposite directions. Owing to the connection of this device with the rod 34, the saw will obviously be reciprocated and the saw may be released by the lever 28 until it ens gages its work whereupon the saw will be heldin such engagement by means of the rod and its spring connection 60 and 63 respectively. a

l/Vhen it is desired to saw standing tim 1 her, the standards 21 and 22 are moved so downward to dispose the same in a horizontal position and the standardQl rests upon the supporting legs 20 thereof. First how-" ever braces 65 are provided to support the standards in upright positions being dis engaged from eyes 66 mounted on the truck. The braces 65 are hook shaped at one end as indicated at 67 to engage 'eyes'68 on the truck fioor, spaced'from the eye-bolts 66 to support the saw frame in a horizontalpe sition. The opposite end of the braces engage the standards adjacent their upper ends to retain the same in upright positions. It will be apparent that owing to the ball and socket connection 35, the saw actuating mechanism may operate in anyposition of the saw frame.

While I have illustrated and described my invention, with some degree of particue larity, I realize that in practice various alterations thereover may be made, and I- therefore desire to reserve the right and privilege of changing the'form of the details of construction or otherwise altering the arrangement of the correlative parts without departing from the'spirit of the invention or the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is V V 1 l. A sawing machine including a wheel supported truck, a pair of standards pivotally mounted on said truck at opposite ends thereof for movement from a vertical to a horizontal position, a bar pivotally mounted on one standard and guided by the other standard, a lever fulcrumed on the latter standard, a link connecting said lever with said'bar, means for'supporting a saw on said bar for reciprocatory movement, and means mounted on the truck for reciprocating said saw in either position of the standards. V

2. A sawing machine including a wheel 7 supported truck a pair of standards pivotally mounted on said truck at opposite ends thereof, for movement from avertical 1,282,987 I V at end of the bar, a lever fulcru'ln'ed on the latter standard, a link connecting said lever with the bar, a cross head guided for reciprocatory movement on the truck, a saw mounted for reciprocatory movement on the bar, a rod connecting said cross head with the saw for universal movement, and means mounted on the truck for reciprocating said cross head.

3. A sawing machine including a wheel supported truck, a pair of standards mounted thereon at opposite ends thereof for movement from a vertical to a horizontal position, a bar pivotally mounted on one standard, means on the other standard for guiding the free end of the bar, a lever pivotally mounted on the latter standard, a link connecting one end of the lever to the for communicating said cross head.

bar,-a saw mounted for reciprocatory movement on said end of the bar, a guide mounted on the truck comprising a pair of parallel spaced bars, a cross head movable .between said bars, a socket mounted on said cross head, a rod connected to the'saw and having a spherical member to enter the socket, a shaft journaled on the truck, and

means for converting rotary movement of the shaft into reciprocatory movement and movement to the In testimony whereof I' aifix my signature in presence of two witnesses.

v CHARLES A. SHERBECK. Witnesses: i

I J. F. Bmsco,

FRANK YDUNNING.

Copies of this patent may be obtained for five centseaeh, by addressing the Commissioner of ratentl, Washington, I). 0." 

